Water closet



y 22 99 5 C. H. ZWERMANN 2,006,428

WATER CLOSET Filed July 30, 1932 2 Sheets-Sheet l Patented July 2, 1935 Zwermannand Carl H. Zwermann, Jr., executrix and executor of said Carl H. Zwermanm;

deceased Application July so, 1932, Serial No. 626,540

I g 2 Claims.

This invention relates to the inventions of my co-pending applications for Letters Patent Serv No. 480,317, filed Sept. 8, 1930, and Ser. No. 577, .185 filed Nov. 25, 1931. 1

' The-objects of this invention are: 1

First, to provide a water closet having a flush tank to store waterto institute siphonic action and 4.

. in the bowl and a jet under strong pressure to completelyfiush the bowl.

Second, to provide such a structure with a simple and eificient means of securing the tank to the bowl to' provide a unitary structure of neat and attractive appearance. "I'hird, to provide such a structure with a small flush tank that uses the water main supply pressure for flushing and is silent in operation. Objects and advantages of construction and operation will appear from the description to follow. A preferred embodiment of my invention is illustrated in the accompanying drawings, in which: p

Fig. 1 is a sectional elevation of a water closet embodying my invention.

Fig. 2 is a sectional View of such a water closet taken on line 22 of. Fig. 1. Fig. 3 is an enlarged detail sectional elevation through the ball cock valve and auxiliary valve mechanism taken on the line 3- 3 of Fig. 1.

Fig. 4 is a detail sectional view of the bowl of such a closet showing the passage for the intro-- duction of water from the supply main taken on line 44 of Figs. 2 and 5. i I v Fig. 5 is a detail-sectional plan view of a portion of the bowl taken on line 5-5 of Figs. 1,2

nular suppIypasSage 2 at the top with downwardly directed delivery perforation 2! leading into the upper part of the bowl. 3 is the discharge siphon having the up-leg 3| and down-leg '5 is an auxiliary passage for supplying water to jet '5I in the bottom of the bowl 4 under strong pressure from the 7 water main. The jet 5i dis" charges across the bottom of the bowl and into the up-leg 3| of the siphon 3.

6 is a water tank off'small capacity. The capacity is preferably less than is required to com pletely flush the bowl butis suificient' to institute siphonic action therein. ii is the usual rubber water closet .valve controlled by the usual lever connection ll. Iii is the overflow pipe of usual construction. I I is the supply pipe. i2 is the ball cockvalve' and i3 is thefloat which controls the same. HI isthe supply pipe leading to the ball cock Valve and i5 is the re-fill pipe leading from the valve chamber upwardly and around over into the overflow pipe ID. I6 is the auxiliary supply'pipe extending to the port IGI to the auxiliary jet pasage I'I istheauxiliary valve casa I Ball cock I2 is provided with a conical seat; IZI against which closes the poppet valve I22. cylindrical bushing I23 is provided within" the valve casing anda counter-balanced, cylindrical, spool-shaped plunger I24 reciprocates within this casing, being provided with a hydraulic cupj'pack- 1 ing I25, I25 at each endand being provided with a central bore whereby the plunger will be counterbalancedby equalpressureof water at both ends. The throw of the plunger is adjustable by set screw E28 extending through stufiing box I27.

Float lever I3I is fulcrumed at I32 to ears I33 on the side' ofthe casing of valve I2 and has a rounded inwardly'pro'jecting short arm I34 engaging between the end flanges of the plunger I24. This provides a valve the operation of which is readily adjustable and is very free inits movemerits which is required for astructure of this kind.

The outlet I as of "the ball cock'valve I2 leads into a casing ill' of the auxiliary valve mechanism IT. This valve casingis provided with an intake chamber I72 and an outlet chamber I73 delivering downwardly through pipe I4 whereby the tank 5 is filled. Valve casing II is also provided with discharge chamber I14 to supply-the pipe I6 to the auxiliary jet under direct pressure from the main. Valve I8 is provided for controlling the flow of water through the auxiliary valve.

In its lower position it closes valve seat NH and prevents the direct flow of water from chamber I72 to the main passage I13. Valve I8 is provided with a vertical steml32 and within thecasing "I is a valve seatl83' controlling the supply to the chamber I14. Valve seat I83 is directly above valve seat l8I so that when the valve I8 is raised against the valve seat I83 the supply of water to passage H3 and auxiliary pipe I6 is cut off and water delivered dire'ctly'from sup'plychamber I'l3to 'pipe'ltforfilling the tank.

' The action of valve i8 is controlled automatically by the diphragm plunger and fioat means. Ina recess I below valve I8 is-disposeda diaphragm I9 which is clamped atits periphery by bottom cover plate 20. Tothe center of' this diaphragm is secured the vertical plunger 2|. The plunger 2| is disposed axially under valve I8 and when it is raised elevates the valveto the dotted position indicated in Fig. 3; "closing seat I 83. This is accomplishe'dwhen the diaphragm is acted upon automatically by hydraulic pres sure. A cylindrical chamber 20I is formed centrally beneath the diaphragm I9 in the cover-20.

A restricted: passage 202, 203 through hollow screw '22 delivers intothe upper part. of chamber '26)! =directin'ga jet radially andcentrally into the same. The lower part of the chamber is provided with outlet 204 connecting to a central bore 285 terminating in a valve seat 206 above. A dished shaped valve 23 cooperates with the valve seat 206. This valve is a float valve provided with a central stem 23I attached to a screw and suspending a float 233 at its lower end. Limiting stop collar 232 is provided on the valve stem' The tank 6 is of vitreous china material and is supported on said shelf, there being a ground joint 253 on the bottom of the tank fitting a corresponding'ground joint 254 on the top of the shelf of the bowl. 26 is a usual flush valve construction having a screw threaded shank 26I projecting well below the bottom in the usual manner and projecting into the opening in the top wall of the shelf. 21 is a special nut for attaching the flush valve structure, threaded to en-- gage the projecting shank 26I and thus support .theflush valve structure. The nut is provided with a downwardly projecting cross bar 2H having a threaded boss 212 at the center. Attachin screw 28 projects upwardly through the lower wall of the shelf and engages the threaded boss 212. The screw 28 iscentrallylocated and is embraced and concealed in the recess 252 at the back of the bowl. A metal washer ZSI is providedwhich engages a rubber packing washer 282 to securely close the opening. 3

The passage 5 is arranged at the outside of the bowl and a wall or web 52 forming a recess 53 entirely conceals from view the connection between the pipe I6 and the passage 5. The pipe I6 extends downwardly through the opening IIiI and is anchored by nuts54. The end projects into opening 55 wherein is a packing 56 that shoulders against nut 51 to make a tight butt-joint. The nut 51 makes the shoulder adjustable to assure a tight fit as the tank is tightened into place. The screw 28 when tightened holds this joint as it does the joint formed at the flush valve. The parts of the closet having beendescribed, the operation will be discussed in detail. When the lever 9 is tripped, valve 8 is raised and the water in the tank. drops by gravity through the shank 26I into the'hollow shelf 25. The water flowing into the hollow shelf 25 flows into annular passage 2 and is discharged through opening 2I into the bowl to start the siphonic action by filling the bowl. The discharge through jet 5! into the up-leg 3| of the siphon then boosts the siphonic action and carries on the flushing of the bowl, as will be more fully set forth hereafter. The tank 6 is of such capacity that there is sufiicient water to start the siphonic action which is taken up by the jet 5| to cause the flushing operation.

-As the water flows from the tank. the float I3 drops and valve I22 is raised from its seat I2l. Water under pressure at once rushes into the discharge opening I28 to chamber I'I2 above valve I8, up past valve seat I83 to discharge chamber -I'I4 into pipe I6, thencedown through the passage 5, delivering a strong jet of water under direct pressure from the main across the bottom of the bowl and into the up-leg 3| of the siphon. This action continues with increasing strength as valve I22 is raised, thus securing a very strong jet discharging action into the up-leg 3| of the siphon 3. As'the water in the tank descends, it eventually drops below the valve casing 24 and permits water to fiow out through aperture 24I permitting float 233 to drop. This carries down valve 23 by its connection to the valve stem 23L As soon as valve 23 seats at 206 chamber 2M is substantially closed and water under pressure enters and acts upon the diaphragm I9 carrying plungerZI upwardly against valve I8, lifting it against the seat I83 and cutting off the auxiliary water supply to the jet.

Valve I8 closes against seat I83 and is maintained there until the float 233 raises the float valve 23 ofi its seat. When this, is done water from chamber 28I is at once discharged and the pressure on. diaphragm I9 is released. The plunger 2| drops and by this time valve I22 has been closed onto its seat I2 I. Pressure is released and valve I8 drops into its seat I M and the water closet is again ready for operation.

In the meantime during these operations, sufficient pressure is in the chamber III to deliver sufficient water through re-fill pipe I5 to re-fill the bowl.

Byusing my improvement it is possible to make use of a much smaller flush tank than formerly, while obtaining the silent action of the siphon with the positive flushing action of the pressure from the water main,which action is obtained in a substantially noiseless manner. i

By the construction of the shelf on the bowl and the flush tank fastened by the singlescrew, I have produced a structure that is very simple and in which. the parts are effectively sealed and made water tight. The pipe I6 is held in water tight relation to the passage 5 by the action of the single screw and a much simpler structure is possible, the present structure being easily detached and at the same time embodying the advantages heretofore set forth.

I have described my structure in'the precise detail in which I wish to claim it specifically." I also wish to claim the invention broadly as pointed out in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. The combination of a siphon water closet bowl, a gravity tank therefor having a capacity less than sufficient to completely flush the bowl by siphonic action and connected to supply the bowl, a ball cock, and an auxiliary valve controlled by pressure from the ball cook, a jet within the bowl adapted to discharge into the upleg of the siphon after institution of siphonic action, and a direct connection from the jet to the main water supply controlled by said auxiliary valve, the same constituting automatic means for controlling the said water supply.

2. The combination of a siphon water closet bowl, a gravity tank therefor having a capacity less than sufficient to completely flush the bowl by siphonic action and connected to supply the bowl, a ball cock, an auxiliary valve controlled by pressure from the ball cock. a jet within the bowl to discharge therein after institution of siphonic action, and a direct connection from the jet to the main water supply controlled by said auxiliary valve, the same constituting automatic means for controlling the said water supply. I

' CARL H. ZWERMANN. 

